Signature-feeding mechanism for book-stitching machines



M. CHRISTENSEN.- SIGNATURE FEEDING MECHANISM FOR BOOK STITCHING MACHINES.

APPLICATiON man DEC.13, 1919.

Patented Dec. 20, 1921.

2 SHEETS-SHEET'I.

Jay

M. CHRISTENSEN. SIGNATURE FEEDING MECHANISM FOR BOOK STITCHING MACHINES.

APPLICATION FILED DEC. 13. IQIB. 1,400,725, Patented Dec. 20, 1921.

2 SHEETS-SHEET 2.

r 5 J8 07 1 A 40 Q L L I i as MARTIN CHRESTENSEN, 0F RAGINE, WISCONSIN, ASSTLGIQ'OR T9 CHRISTENSEN MACHINE (30., O1 EACIHE, "WESCONSIN, A CQBPGEATEON 01 WISCONSIN.

SIGNATURE EEEDING MECEZANISM F033.- BOOK-STITCEHNG MACHINES.

1,4ltl@,725.

T 0 all whom it may concern.

Be it known that l, MARTIN CHRISTENSEN, a citizen of the United Eitates, and resident of Racine, in the county of Racine and State of Wisconsin, have invented new and useful Improvements in Signature-Feeding Mechanism for BoolnStitching Machines, of which the following is a description, reference being had to the accompanying drawinns, which are a part of this specification.

The present invention relates to certain new and useful improvements in signature handling machines and refers more particularly to the mechanism for feeding the collected groups of signatures to the stitchers or binders and away from the same to the delivery mechanism. r

The primary object of the present invention is to provide means for positively feeding groups of signatures to a stitcher.

A further object of this invention is to provide a signature feeding mechanism adapted to feed groups of signatures to a stitcher and away from the stitcher after they have been operated upon by the stitcher.

A still further object of the present invention is to provide a feeding mechanism for book-stitching machines which will be positive in operation, and which will be of simple construction, all things considered.

With the above and other objects in View which will appear as the description proceeds my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understoodthat such changes in the precise embodiment of the herein described invention may he made as come within the scope of the claims.

In the accompanying drawings 1 have illustrated two complete examples of the physical embodiment of my invention constructed according to the best modes l have so far devised for the practical application of the principles thereof, and in which Figure 1 is a view taken through a portion of the stitcher machine equipped with my novel form of feeding mechanism, parts being in elevation and parts in section to more clearly illustrate the same.

Fig. 2 is a view looking at my feeding mechanism on the plane of line 2-2 of Fig. 1, a part being broken away and in section.

Fig. 3 is a view similar to Fig. 1 of a Specification of Letters Patent. Pgjfijrgntgqi D i 2Q 19 2p Application filed December 13, 1919.

Serial No. 324,696.

slightly modified construction of feeding mechanism, and I Fig. l is a plan view taken on the plane indicated on the line M of Fig. 3.

ln book-stitching machines, the collected groups of signatures are usually fed past an aiming; device after which they are vtaken by the stitcher feed past the stitchers and as the'alining device forms no part of the present application only the feeding mechanism will be described. The groups of signatures 5 from the conveyer (not shown) are fed over an inverted if-shaped saddle designated generally by the numeral 6. Stitchers 7 are secured to the frame 8 in spaced relation for cotiperating with clencher mechanisms 9 to insert the staples in the books or groups of signatures as they pass over the saddle 6, but as their construction and the manner of attachment to the machine forms no part of the present invention further detailed description there f is deemed unnecessary.

The signature feeding mechanism for carrying the books or groups of signatures along the saddle 6 to the stitchers 7 and then from the stitchers to the delivery mechanism (not shown) consists of a longitudinally movable feed bar 10 slidably mounted in a recess 11 in one of the sides of the saddle, means for moving the bar, and means for pressing the groups of signatures 5 against said bar and moving them in toward the stitchers before beingstitched and from the stitchers toward the delivery mechanism after being stitched.

The means for moving the feed bar 10 consists of a lever 12 having its upper end pivotally connected to one end of a link 13, which link is pivotally connected at its other end to a bearing bracket 14 secured to the under side of the feed bar, said lever has its lower end pivotally mounted and is adapted to he reciprocated as illustrated and described in Letters Patent No. 1,351,231, issued to me August 81, 1920.

Referring" now more particularly to Figs. 1 and 2, the m ans for pressing the signatures against the bar 10 consists of a plurality of signature engaging fingers or plungers 15, each having its shank 16 slidably mounted within a retaining housing 17 and having coiled therearound and confined within the housing 17 an extensile spring 18 normally urging the signature engaging finmally urged tovengage L!) I of signatures. The means for engaglngthe sig ature eng members with the groups of signatures consists of a rock shaft 22 journally mounted in the frame 8 and having fixed thereto thelower ends of a plurality of, s ns having rollers 34;

journaled in their upper ends and engaging the-upper e es of the bar ine rock sha 22 is adapted to be oscillated by means of suitable mechanism as described in said Letters Patent No.

1,351,231, issued to me August 31, 1920, and is connected with said mechanism by means of an arm25. When the arms 23 are rocked to the in reference to Fig. 1, the bar will be moved downwardly against the i o of the springs 21 and the members god with the group or 'roups 01"- sig natuits to bind the some bet seen them and the bar 10 and means i yed tor moving 20 coir th the rod 10 to feed the signatures e stitchers or from the stitchers after same have been stitched. I

The means for moving the bar 20 conjointiy with the bar 10 consist of a slide bar 26 slidably mounted in guideways 27 in a support 28, said slide bar being reciprocated by a lever 29 connected thereto itsupper end by means of a linl: 30 and an arm 31 depending from the slide bar 26. The lever 29 isl'ocked or reciprocated conjointly with the lever 12 and thus the bar 20 and bar 10 are conjointly moved to and,

The bar 20- is secured bar 26 by means of a plurality members 3:? which pass through 38 in said her 20 engage from the stitcher. to the slide of securing an aperture slide bar 26 and is normall' urged to its upper limit of? movement by the springs 21 having their upper ends securec to the slide bar 26 and their other secured tothe bar 20, see Fig, 1.

lin tha ;torm of my invention depicted in Figs. 3 and lin the place of the plungers 15 I employ the plurality of medially pivoted finger members 34 mounted upon pins 35 carried directly bythe slide bar 26, each having a signature engaging portion 36 nor with the groups of signatures by means of a retractile spring 37 having one. end secured to the slide bar 26 audits other end secured to the finger member near its end remote from its signature engaging portion. its in that form of my invention designated in Figs. 1 and 2, the finger members 3 1- arefreciprocated with the slide bar 26 and the means for disengaging the ends 36 of said finger members from the groups of signatures consist of a reciprocally mounted bar 38 along the under side of which tracks an idler wheel or pulley 39 carried by each finger in its upper end and the rod 88 is adapted to be rotated by means of a rocking lever 40 connecting with suitable rocking means, not shown.

in, this form of my invention the rod 38 when rocked to the left with reference to Fig. 1-, is depressed by means of cams e1 formed thereon and engaging fixed arms carried by the support 28 of the pulleys 39 and disengage the ends 36 from the sig natures During the rearwardmovement of the 10 the stitching-mechanism 7 is adapted rate and'during this movement the sin ers 15 or the fingers 3e are held from ement with the groups of signatures. in that form of my "invention depicted in Figsv 1 and 2 the plungers 15 are disengaged from signatures by movement to the right of the arms 23, with reference to Fig. 1 .vhich permits the springs 21 to move the bar 9 0 upwardly and the fingers depicted in Figs. 3 and l are disengaged by means of a rocking lever l0 engaging cams 4:1 with the arms 42 depressingthe bar 38 ano moving the fingers 3e ag inst the action of springs 37. l fhen the bars 10 '52s have reached their entire rearward limit of movement the plungers 15 or the fingers 34 are permitted to engage with the groups of signatures and as said bars begin their moiemen toward the stitchers said plungers or fingers engage the next group of signatures and the group WlllCl'l has just been stitched will be moved toward the delivered mechanism and another group be positioned beneath the StliIChQIS.

What I claim as my invention is :7

1. The combination with the signature holder of a book stitching machine, ofsig nature feeding mechanism comprising a pair of devices adapted to engage the opposite sides of the signatures, means to move said devices simultaneously relative to said holder, and means to move one of said devices relative to the other for the purpose described.-

'2. The combination with the signature iolder of a book stitching machine, of signature feeding mechanism comprising a naem ber slidablymountedon said holder and adapted to engage one side of the signatures, a bar mounted in the frame of the machine and slidable with respect to said holder, a device mounted on said bar and coz'iperating with said member to grip the signatures, and means to move" said member and said bar siiii multaneously relative to said holder for the purpose described.

The combination with the signature holder of a cool: stitching machine, of signature teething mechanism comprisin a member slidably mounted on said holder and adapted to eng go one side of the signatures, a bar mounted in the frame of the machine and slidable with respect to said holder, a device mounted on said in r and cooperating with. said member to grip the signatures, means to move said war toward or away from said meml" 21', and means to more said member and Sdld bar simultaneously relative to said holder for the purpose described.

4;. lhe combination with the si nature holder of a book stitching achine, ture feeding mechanism c' her slidably mounted on. sad holder and adapted to engage one side oi. the signatures, a bar mounted in the frame of the machine and slidable with respect to said holder, a device yieldably mounted on said and co operating with said member to p the sin;- natures, and means to move said ii nber and said has simultaneously relative to said holder for the purpose described.

5. The combination with the signature holder of a book stitcl'iing mac ine, oi. signature "feeding; mechanism comprising a men ber slidably mounted on said holder and adapted to engage one. side oil the signatures, a bar mounted in the ame ot' the machine and slidable transversely and longitudinally with respect to said holder, device mounted on said bar and cooperating with said member to grip the signatures, means to move said her laterally toward or away said member, and means to move said memher and said bar simultaneously relative to said holder for the puijpose described.

6. The combination with the signature holder of a book stitching; machine, of signature feeding mechanism comprising a mem- Vber slidably mounted on said holder and adapted to engage one side of the signatures, a bar mounted in the frame of the machine and slidable transversely and loneitudinally with respectto said holder, a device yieldably mounted on said her and cooperating with said member to grip the signatures, means to move said bar laterally toward or away from said member, and means to move said member and said bar simultaneously relative to said holder for the purpose described.

7. The combination with the sienature holder of a book stitching; machine, or signature feedingmechanism comprising" a member slidably mounted on said holder and adapted to engage one side of the signatures, bar mounted in the frame of the machine and slidable transversely and longitudinally with respect to said holder, signature gripping devices mounted on said bar, means for normally holding said bar so that said devices are out of engagement with the signatures, means for movingsaid bar toward the signatures to bring; said devices into on ment therewith, and means .imultaneously moving said member one. said bar relative to said holder to carr the signatures over said holder.

in testimony whereof l affix signature.

MARTIN onnisrnusnu 

